My review sample goes a little something like this.
http://valid.canardpc.com/w90q4y
4Core / 8 Thread
5Ghz ambient F1 with fan 1.25vcore
5.5Ghz -20c 1.5vcore 1.8v input
5.9Ghz -100c 1.6vcore 2.2v input
6.0Ghz -130c 1.8vcore 2.3v input
6.1ghz -135c 1.85vcore 2.4v input
6.2ghz -140c 1.9vcore 2.5v input
6.3ghz -142c 1.91vcore 2.5v input (instant crash)
1.95vcore = instant crash @ -140c
2.6v input = instant crash
I need to test the memory controller more
Memory controller maxed out a little over 1.4v -130c 5.5Ghz, 1.4v @ 5.2Ghz seems to be a close max stable
Cold bug factory defaults in bios at -120c
Cold bug 5.5Ghz boot -140c
Cold bug 6Ghz 4c8t idle -141c ~ loaded -150c
You gotta get chip warmer to get it colder
It clocks better and goes colder with 4c8t, removal of HT and cores makes cold bug worse.
This chip is binned for review sample, it should be close to what you get from retail.
With the new chip you get more Mhz on air and water but you can see the wall trying to reach the last few multilples on the top end.
This chip is better than any retail 4770K that I have tested in the past year.
Two of the major changes help with getting all retail chips to 5ghz on air, The TIM and the added resistor packs on the back of the CPU allow more voltage and that pushes the chip a little harder to push past 6Ghz.